Furnace.



PATENTED FEB. 28, 1905.

W. J., BULTON.

FURNAGE.

APPLIUATION FILED JUL- 11A 1904.

JWVEWTOR im M WITV'ESSES 7% Sfwf/ X3 Suu. reame.

lllrvrrieiu "MTS Patented February 278, 1905.

l/ViLLlAM J. BOLL'N, 0F I'YETROIT, MICHlt-rAN SPECIFICATION forming part o1" Letters Patent No. 783,815, dated February 28, 1905.

Application filed July ll, 1904. Serial No. 216,194.

llc it known that l, WILLIAM J. BoL'roN, a subject of the King of Great Britain, residing at Detroit, county of Wayne, State of Michigan, have invented a certain new and useful improvement in Furnaces; and l declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this speciiication.

This invention relates to furnaces.

lt has for its object an improved furnace construction in which provision is made to direct highly-heated air from directly over the [ire-pot into any one of the heat-conducting flues through which it may be desired to conduct an eXtra amount of heat.

ln the drawings, Figure 1 is a vertical section of the furnace. Fig. 2 is a horizontal section through the auxiliaryT heating-drinn A. Fig. 3 indicates the means for turning1 the conductor which leads from the auxiliary heatingdrum. Fig. 4 shows the dial which indicates the direction to which the outlet of the auxiliary pipe is directed.

l indicates the [ire-pot of a furnace, over which is a combustiori-chamber 2, from which the products of combustion pass to a radiatingdrum provided with bathe-plates or circular partition-walls which compel the heated gases to traverse the entire circuit of the outer wall of the h eating-drum 3 before escaping through the smoke-flue Ll to the chimney.

llhe lire-pot and combustioir-chamber and a part of the smoke-flue and the heating-drum are all inclosed in a casing 5, from the top of which lead the several hot-air ducts 6. A11 auxiliary heating-drum A hangs in the comlmstion-chamber2 and is provided with a coldair-inlct [lue 7 and hot-air duct 8. The coldair liuc leads into the side of the heating-drum, and the hot-air duct leads out of the center and directly upward through the drum 3. The hot-air duct 8 is provided with an elbow and with a horizontal d uct 9, which turns with the elbow on the vertical duct 8 to shift the mouth 9 of the hot-air duct to register with the inlet to any one of the hot-air fines 6. The elbow 8 is provided with a pivot-rod 10, that extends upward through the top of the casing and, if necessary, through the Vfloor of the building in which the furnace is located and terminates with a hand-wheel 12, by means of which the horizontal portion 9 of the hot-air flue lnay be rotated from the room above the furnace. A pointer 13 indicates on a dial la the direction of the horizontal part 9, and on the dial are also iiulicating-marks to designate the location of the inlets to the ii ues (5. By the use of this rotatable pipe, which leads directly from a highly-heated drum that is in the combastion-chamber and immediately over the lire-pot, the warmest air of the furnace may be sent directly through any one of the airducts to any portion of the building and that part of the building which is for the time being subjected to winds or which for other reasons is lower in temperature than it should be may be warmed by furnishing it with the warmest air produced inthe furnace. The drum A is provided with battle-plates l5 and 16, which compel the cold air entering through the cold-air flue 7 to travel entirely around the outer circuit of the drum before entering the inner chamber and the mouth of the vertical duct 8. The rod 10. which is employed to turn the horizontal part 9 of the hot-air duct, is preferably seated on a foot-plate in the drum A and preferably braced at the mouth of the elbow 8 by braces 17.

Vl/That ll. claim is- 1. ln combination with a furnace, an auxiliary heating-drum located therewithin, a heatduct leadingtherefrom and adapted to connect with comluctor-pipes, and means for shifting said heat-duct from connection with one to similar position with regard to another, substantiall y as described.

2. ln combination with a furnace provided with a casing and an inclosed heat-chamber, hot-air ducts leading' from the l eat-chamber, an auxiliary heating-drum located in the combixstion-chan'iber of the furnace, a cold-air duet leading thereinto, a duct leading Yfrom said auxiliary heating-drum rotatable on an axis and adapted to be turned to register with any' one of the several hot-air ducts, substaiitially as described.

3. In combination with a furnace provided l from one to another of said surrounding ducts, IC with a lire-pot, a combustion-chamber, a casl Substantially as described. ing inclosing said chamber and spaced thereln testimony whereof I sign this speoilioafrom, an auxiliary heating-drum located in tion in the presence of two Witnesses. said combustion-chamber, a cold-air-inlet flue WILLIAM l BOLTON leading thereinto trom Without, a hot-air duet rising from said drurn adapted to register with any one ot' several hot-air ducts surrounding' its free end and means for turning said duet vWitnesses:

LOTTA LEE HAYTON, VILLIAM M. SWAN. 

